An Australian Conservation Foundation analysis found the cost of the incentives has increased by $1.6 billion since 2007-08, the final year of the Howard government, while spending on climate programs had risen just $500 million. The biggest fossil fuel incentives were in unclaimed revenue, including about $5 billion in fuel tax rebates for greenhouse-intensive industries.

More than $1.1 billion was spent on fringe benefits tax concessions for company cars."